<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
*{margin:0;padding:0;}
	#myElement{width:100px;height:100px;border:1px solid #ddd;}
</style>
</head>

<body>
	<input type='text' name="myElement" value="Text field" />
    <div id="myElement"></div>
    
    <script>
	
		var myEle=document.getElementById('myElement');//IE7-获取的是input元素而不是div元素
		
		myEle.style.width='600px';
		
		
		
    </script>
</body>
</html>
